GIF89a=( õ' 7IAXKgNgYvYx\%wh…hŽth%ˆs%—x¨}9®Œ©€&©‰%¶†(¹–.¹5·œD¹&Çš)ÇŸ5ǘ;Í£*È¡&Õ²)ׯ7×µ<Ñ»4ï°3ø‘HÖ§KͯT÷¨Yÿšqÿ»qÿÔFØ !ù ' !ÿ NETSCAPE2.0 , =( þÀ“pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§gª«ªE¯°¨¬ª±²Œ¹º¹E¾­”´ÂB¶¯ §Åȸ»ÑD¾¿Á•ÄÅ®° ÝH¾ÒLÀÆDÙ«D¶BÝïðÀ¾DÑÑÔTÌÍíH òGö¨A RÎڐ |¥ ٭&ºìE8œ¹kGÔAÞpx­a¶­ã R2XB®åE8I€Õ6Xî:vT)äžþÀq¦è³¥ì仕F~%xñ  4#ZÔ‰O|-4Bs‘X:= QÉ œš lºÒyXJŠGȦ|s hÏíK–3l7·B|¥$'7Jީܪ‰‡àá”Dæn=Pƒ ¤Òëí‰`䌨ljóá¯Éüv>á–Á¼5 ½.69ûϸd«­ºÀûnlv©‹ªîf{¬ÜãPbŸ  l5‘Ž¯pß ´ ˜3aÅùäI«O’ý·‘áÞ‡˜¾Æ‚ÙÏiÇÿ‹Àƒ #öó)pâš Þ½ ‘Ý{ó)vmÞü%D~ 6f s}ŃƒDØW Eþ`‡þ À…L8xá†ç˜{)x`X/> Ì}mø‚–RØ‘*|`D=‚Ø_ ^ð5 !_…'aä“OÚ—7âcð`D”Cx`ÝÂ¥ä‹éY¹—F¼¤¥Š?¡Õ™ n@`} lď’ÄÉ@4>ñd œ à‘vÒxNÃ×™@žd=ˆgsžG±æ ´²æud &p8Qñ)ˆ«lXD©øÜéAžHìySun jª×k*D¤LH] †¦§C™Jä–´Xb~ʪwStŽ6K,°£qÁœ:9ت:¨þªl¨@¡`‚ûÚ ».Û¬¯t‹ÆSÉ[:°=Š‹„‘Nåû”Ìî{¿ÂA ‡Rà›ÀÙ6úë°Ÿð0Ä_ ½;ÃϱîÉì^ÇÛÇ#Ëë¼ôº!±Ä˜íUîÅÇ;0L1óÁµö«p% AÀºU̬ݵ¼á%霼€‡¯Á~`ÏG¯»À× ­²± =4ªnpð3¾¤³¯­ü¾¦îuÙuµÙ®|%2ÊIÿür¦#0·ÔJ``8È@S@5ê¢ ö×Þ^`8EÜ]ý.뜃Âç 7 ú ȉÞj œ½Dç zý¸iþœÑÙûÄë!ˆÞÀl§Ïw‹*DçI€nEX¯¬¼ &A¬Go¼QföõFç°¯;é¦÷îŽêJ°îúôF5¡ÌQ|îúöXªæ»TÁÏyñêï]ê² o óÎC=öõ›ÒÓPB@ D×½œä(>èCÂxŽ`±«Ÿ–JЀ»Û á¤±p+eE0`ëŽ`A Ú/NE€Ø†À9‚@¤à H½7”à‡%B‰`Àl*ƒó‘–‡8 2ñ%¸ —€:Ù1Á‰E¸àux%nP1ð!‘ðC)¾P81lÑɸF#ˆ€{´âé°ÈB„0>±û °b¡Š´±O‚3È–Ù()yRpbµ¨E.Z‘D8ÊH@% òŒx+%Ù˜Æcü »¸˜fõ¬b·d`Fê™8èXH"ÉÈ-±|1Ô6iI, 2““¬$+](A*jÐ QTÂo‰.ÛU슬Œã„Ž`¯SN¡–¶Äåyše¯ª’­¬‚´b¦Éož œ)åyâ@Ì®3 ÎtT̉°&Ø+žLÀf"Ø-|žçÔ>‡Ðv¦Ðžì\‚ Q1)Ž@Žh#aP72”ˆ™¨$‚ !ù " , =( …7IAXG]KgNgYvYxR"k\%w]'}hŽth%ˆg+ˆs%—r.—m3šx3˜x¨}9®€&©€+¨‡7§‰%¶†(¹–.¹œD¹&ǘ;Í•&ײ)×»4ïÌ6ò§KÍ þ@‘pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g «¬ E ±± ¨­¶°ººE Á´”·®C¬²§Ç¶Œ»ÓDÃÕƷ¯Ê±H½ºM×ÁGÚ¬D¶BËÁ½î½DÓôTÏÛßîG»ôõC×CÌ l&âž:'òtU³6ɹ#·Ø)€'Ü.6±&ëÍÈ» K(8p0N?!æ2"ÛˆNIJX>R¼ÐO‚M '¡¨2¸*Ÿþ>#n↠å@‚<[:¡Iïf’ ¤TÚ˘CdbÜÙ“[«ŽEú5MBo¤×@€`@„€Êt W-3 ¶Ÿ¡BíêäjIÝ…Eò9[T…$íêﯧ„…•s»Óȳ¹€ÅÚdc®UUρ#±Ùïldj?´í¼²`\ŽÁðÞu|3'ÖŒ]ë6 ¶S#²‡˜FKLÈ *N E´‘áäŠ$˜›eÄYD„ºq«.è촁ƒs \-ÔjA 9²õ÷å- üúM[Âx(ís÷ì®x€|í¡Ù’p¦‚ ŽkÛTÇDpE@WÜ ²Ç]kŠ1¨ þ€·Yb ÓÁ‰l°*n0 ç™—žzBdОu¾7ĉBl€â‰-ºx~|UåU‰  h*Hœ|e"#"?vpÄiŠe6^ˆ„+qâŠm8 #VÇá ‘å–ÄV„œ|Šè•m"сœn|@›U¶ÆΞ—Špb¥G¨ED”€±Úê2FÌIç? >Éxå Œ± ¡¤„%‘žjŸ‘ꄯ<Ìaà9ijÐ2˜D¦È&›†Z`‚å]wþ¼Â:ç6àB¤7eFJ|õÒ§Õ,¨äàFÇ®cS·Ê¶+B°,‘Þ˜ºNûãØ>PADÌHD¹æž«ÄÀnÌ¥}­#Ë’ë QÀÉSÌÂÇ2ÌXÀ{æk²lQÁ2«ÊðÀ¯w|2Í h‹ÄÂG€,m¾¶ë3ÐÙ6-´ÅE¬L°ÆIij*K½ÀÇqï`DwVÍQXœÚÔpeœ±¬Ñ q˜§Tœ½µƒ°Œìu Â<¶aØ*At¯lmEØ ü ôÛN[P1ÔÛ¦­±$ÜÆ@`ùåDpy¶yXvCAyåB`ŽD¶ 0QwG#¯ æš[^Äþ $ÀÓÝǦ{„L™[±úKÄgÌ;ï£S~¹ìGX.ôgoT.»åˆ°ùŸûù¡?1zö¦Ÿž:ÅgÁ|ìL¹ „®£œŠ‚à0œ]PÁ^p F<"•ç?!,ñ‡N4—…PÄ Á„ö¨Û:Tè@hÀ‹%táÿ:ø-žI<`þ‹p I….)^ 40D#p@ƒj4–؀:²‰1Øâr˜¼F2oW¼#Z†;$Q q” ‘ ÂK¦ñNl#29 !’F@¥Bh·ᏀL!—XFóLH‘Kh¤.«hE&JòG¨¥<™WN!€ÑÙÚˆY„@†>Œž19J" 2,/ &.GXB%ÌRÈ9B6¹W]’î×ÔW¥’IÎ$ ñ‹ÓŒE8YÆ ¼³™ñA5“à®Q.aŸB€&Ø©³ JÁ—! ¦t)K%tœ-¦JF bòNMxLôþ)ÐR¸Ð™‘ èÝ6‘O!THÌ„HÛ ‰ !ù ) , =( …AXKgNgYvYxR"k\%wh…hŽh%ˆg+ˆs%—r.—x3˜x¨}9®€&©€+¨Œ,©‡7§‰%¶†(¹–.¹5·&Çš)ǘ;Í•&×£*Ȳ)ׯ7×»4ï°3øÌ6ò‘HÖ§KÍ»Hó¯T÷¨Yÿ»qÿÇhÿ þÀ”pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g ª« E$±²¨ª­ · °²½$E$ÂÕ««D· Í ¿¦Ç¶¸ÌŒ¾³CÃÅÆ E ééH½MÛÂGâªD­ çBêêϾD²ÒaÀà€Š1r­ðÓ¤ ÔožzU!L˜C'¾yW½UGtäÇïÙllê0×àÂuGþ)AÀs[þ·xì ÁxO%ƒûX2ó—  P£n›R/¡ÑšHše+êDm?# —‘Ç£6¡8íJ¡ŸâDiäªM¥Ö„ôj“¬¹£5oQ7°- <‡ *´lãÓŒ2r/a!l)dÈ A™ÈE¢ôÔ͆…ð ;Ö˜c ¡%ß‚’Ùˆâ¸b½—pe~C"BíëÚHïeF2§æŠ8qb t_`urŠeü wÅu3êæPv§h•"ß`íÍxçLĹÜÖ3á  ~Öº“®›¸ÏMDfJÙ °„ÛµáWõ%§œ‚à©–‚X Ó؁)@®Ñ›Eþ´wëuÅSxb8y\mÖzœ¥§ZbºE—ÂLªÌw!y(>¡™wú=Ç|ÅÝs¢d €CÁW)HÜcC$€L Ä7„r.á\{)@ð` @ äXÈ$PD” `šaG:§æˆOˆ72EÐamn]ù"ŒcÊxÑŒ° &dR8`g«iÙŸLR!¦P …d’ä¡“¦ðÎTƒ¦ià|À _ ¥ Qi#¦Šg›Æ ›noMµ ›V ã£)p ç£ÎW…š=Âeªk§†j„ ´®1ß²sÉxéW«jšl|0¯B0Û, \jÛ´›6±¬¶C ÛíWþï|ëÙ‹¸ñzĸV {ì;Ýñn¼òVˆm³I¼³.Ðã¤PN¥ ²µ¼„µCã+¹ÍByî£Ñ¾HŸ›ëê 7ìYÆFTk¨SaoaY$Dµœìï¿Ã29RÈkt Çïfñ ÇÒ:ÀÐSp¹3ÇI¨â¥DZÄ ü9Ïýögñ½­uÔ*3)O‘˜Ö[_hv ,àî×Et Ÿé¶BH€ Õ[ü±64M@ÔSÌM7dÐl5-ÄÙU܍´©zߌ3Ô€3ž„ „ ¶ÛPô½5×g› êÚ˜kN„Ý…0Îj4€Ìë°“#{þÕ3S2çKÜ'ợlø¼Ú2K{° {Û¶?žm𸧠ËI¼nEò='êüóºè^üæÃ_Û=°óž‚ì#Oý¿Í'¡½áo..ÏYìnüñCœO±Áa¿¢Kô½o,üÄËbö²çºíï{ËC Ú— "”Ï{ËK ÍÒw„õ±Oz dÕ¨à:$ ƒô—«v»] A#ð «€¿šéz)Rx׿ˆ¥‚d``èw-îyÏf×K!ð€þ­Ð|ìPľ„=Ì`ý(f” 'Pa ¥ÐBJa%Ðâf§„%Š¡}FàáÝ×6>ÉäŠG"éŽè=ø!oŠ°^FP¼Ø©Q„ÀCÙÁ`(Ž\ÄÝ® ©Â$<n@dÄ E#ììUÒI! ‚#lù‹`k¦ÐÇ'Rró’ZýNBÈMF Í[¤+‹ðɈ-áwj¨¥þ8¾rá ,VÂh„"|½œ=×G_¦Ñ™EØ 0i*%̲˜Æda0mV‚k¾)›;„&6 p>ÓjK “¦Ç# âDÂ:ûc?:R Ó¬fÞéI-Ì“•Ã<ä=™Ï7˜3œ¨˜c2ŒW ,ˆ”8(T™P‰F¡Jhç"‚ ; 403WebShell
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Current File : /usr/share/perl5/vendor_perl/Pod/Simple/PullParser.pm
require 5;
package Pod::Simple::PullParser;
$VERSION = '3.35';
use Pod::Simple ();
BEGIN {@ISA = ('Pod::Simple')}

use strict;
use Carp ();

use Pod::Simple::PullParserStartToken;
use Pod::Simple::PullParserEndToken;
use Pod::Simple::PullParserTextToken;

BEGIN { *DEBUG = \&Pod::Simple::DEBUG unless defined &DEBUG }

__PACKAGE__->_accessorize(
  'source_fh',         # the filehandle we're reading from
  'source_scalar_ref', # the scalarref we're reading from
  'source_arrayref',   # the arrayref we're reading from
);

#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
#
#  And here is how we implement a pull-parser on top of a push-parser...

sub filter {
  my($self, $source) = @_;
  $self = $self->new unless ref $self;

  $source = *STDIN{IO} unless defined $source;
  $self->set_source($source);
  $self->output_fh(*STDOUT{IO});

  $self->run; # define run() in a subclass if you want to use filter()!
  return $self;
}

# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

sub parse_string_document {
  my $this = shift;
  $this->set_source(\ $_[0]);
  $this->run;
}

sub parse_file {
  my($this, $filename) = @_;
  $this->set_source($filename);
  $this->run;
}

# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
#  In case anyone tries to use them:

sub run {
  use Carp ();
  if( __PACKAGE__ eq ref($_[0]) || $_[0]) { # I'm not being subclassed!
    Carp::croak "You can call run() only on subclasses of "
     . __PACKAGE__;
  } else {
    Carp::croak join '',
      "You can't call run() because ",
      ref($_[0]) || $_[0], " didn't define a run() method";
  }
}

sub parse_lines {
  use Carp ();
  Carp::croak "Use set_source with ", __PACKAGE__,
    " and subclasses, not parse_lines";
}

sub parse_line {
  use Carp ();
  Carp::croak "Use set_source with ", __PACKAGE__,
    " and subclasses, not parse_line";
}

#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

sub new {
  my $class = shift;
  my $self = $class->SUPER::new(@_);
  die "Couldn't construct for $class" unless $self;

  $self->{'token_buffer'} ||= [];
  $self->{'start_token_class'} ||= 'Pod::Simple::PullParserStartToken';
  $self->{'text_token_class'}  ||= 'Pod::Simple::PullParserTextToken';
  $self->{'end_token_class'}   ||= 'Pod::Simple::PullParserEndToken';

  DEBUG > 1 and print STDERR "New pullparser object: $self\n";

  return $self;
}

# ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

sub get_token {
  my $self = shift;
  DEBUG > 1 and print STDERR "\nget_token starting up on $self.\n";
  DEBUG > 2 and print STDERR " Items in token-buffer (",
   scalar( @{ $self->{'token_buffer'} } ) ,
   ") :\n", map(
     "    " . $_->dump . "\n", @{ $self->{'token_buffer'} }
   ),
   @{ $self->{'token_buffer'} } ? '' : '       (no tokens)',
   "\n"
  ;

  until( @{ $self->{'token_buffer'} } ) {
    DEBUG > 3 and print STDERR "I need to get something into my empty token buffer...\n";
    if($self->{'source_dead'}) {
      DEBUG and print STDERR "$self 's source is dead.\n";
      push @{ $self->{'token_buffer'} }, undef;
    } elsif(exists $self->{'source_fh'}) {
      my @lines;
      my $fh = $self->{'source_fh'}
       || Carp::croak('You have to call set_source before you can call get_token');
       
      DEBUG and print STDERR "$self 's source is filehandle $fh.\n";
      # Read those many lines at a time
      for(my $i = Pod::Simple::MANY_LINES; $i--;) {
        DEBUG > 3 and print STDERR " Fetching a line from source filehandle $fh...\n";
        local $/ = $Pod::Simple::NL;
        push @lines, scalar(<$fh>); # readline
        DEBUG > 3 and print STDERR "  Line is: ",
          defined($lines[-1]) ? $lines[-1] : "<undef>\n";
        unless( defined $lines[-1] ) {
          DEBUG and print STDERR "That's it for that source fh!  Killing.\n";
          delete $self->{'source_fh'}; # so it can be GC'd
          last;
        }
         # but pass thru the undef, which will set source_dead to true

        # TODO: look to see if $lines[-1] is =encoding, and if so,
        # do horribly magic things

      }
      
      if(DEBUG > 8) {
        print STDERR "* I've gotten ", scalar(@lines), " lines:\n";
        foreach my $l (@lines) {
          if(defined $l) {
            print STDERR "  line {$l}\n";
          } else {
            print STDERR "  line undef\n";
          }
        }
        print STDERR "* end of ", scalar(@lines), " lines\n";
      }

      $self->SUPER::parse_lines(@lines);
      
    } elsif(exists $self->{'source_arrayref'}) {
      DEBUG and print STDERR "$self 's source is arrayref $self->{'source_arrayref'}, with ",
       scalar(@{$self->{'source_arrayref'}}), " items left in it.\n";

      DEBUG > 3 and print STDERR "  Fetching ", Pod::Simple::MANY_LINES, " lines.\n";
      $self->SUPER::parse_lines(
        splice @{ $self->{'source_arrayref'} },
        0,
        Pod::Simple::MANY_LINES
      );
      unless( @{ $self->{'source_arrayref'} } ) {
        DEBUG and print STDERR "That's it for that source arrayref!  Killing.\n";
        $self->SUPER::parse_lines(undef);
        delete $self->{'source_arrayref'}; # so it can be GC'd
      }
       # to make sure that an undef is always sent to signal end-of-stream

    } elsif(exists $self->{'source_scalar_ref'}) {

      DEBUG and print STDERR "$self 's source is scalarref $self->{'source_scalar_ref'}, with ",
        length(${ $self->{'source_scalar_ref'} }) -
        (pos(${ $self->{'source_scalar_ref'} }) || 0),
        " characters left to parse.\n";

      DEBUG > 3 and print STDERR " Fetching a line from source-string...\n";
      if( ${ $self->{'source_scalar_ref'} } =~
        m/([^\n\r]*)((?:\r?\n)?)/g
      ) {
        #print(">> $1\n"),
        $self->SUPER::parse_lines($1)
         if length($1) or length($2)
          or pos(     ${ $self->{'source_scalar_ref'} })
           != length( ${ $self->{'source_scalar_ref'} });
         # I.e., unless it's a zero-length "empty line" at the very
         #  end of "foo\nbar\n" (i.e., between the \n and the EOS).
      } else { # that's the end.  Byebye
        $self->SUPER::parse_lines(undef);
        delete $self->{'source_scalar_ref'};
        DEBUG and print STDERR "That's it for that source scalarref!  Killing.\n";
      }

      
    } else {
      die "What source??";
    }
  }
  DEBUG and print STDERR "get_token about to return ",
   Pod::Simple::pretty( @{$self->{'token_buffer'}}
     ? $self->{'token_buffer'}[-1] : undef
   ), "\n";
  return shift @{$self->{'token_buffer'}}; # that's an undef if empty
}

sub unget_token {
  my $self = shift;
  DEBUG and print STDERR "Ungetting ", scalar(@_), " tokens: ",
   @_ ? "@_\n" : "().\n";
  foreach my $t (@_) {
    Carp::croak "Can't unget that, because it's not a token -- it's undef!"
     unless defined $t;
    Carp::croak "Can't unget $t, because it's not a token -- it's a string!"
     unless ref $t;
    Carp::croak "Can't unget $t, because it's not a token object!"
     unless UNIVERSAL::can($t, 'type');
  }
  
  unshift @{$self->{'token_buffer'}}, @_;
  DEBUG > 1 and print STDERR "Token buffer now has ",
   scalar(@{$self->{'token_buffer'}}), " items in it.\n";
  return;
}

#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

# $self->{'source_filename'} = $source;

sub set_source {
  my $self = shift @_;
  return $self->{'source_fh'} unless @_;
  Carp::croak("Cannot assign new source to pull parser; create a new instance, instead")
      if $self->{'source_fh'} || $self->{'source_scalar_ref'} || $self->{'source_arrayref'};
  my $handle;
  if(!defined $_[0]) {
    Carp::croak("Can't use empty-string as a source for set_source");
  } elsif(ref(\( $_[0] )) eq 'GLOB') {
    $self->{'source_filename'} = '' . ($handle = $_[0]);
    DEBUG and print STDERR "$self 's source is glob $_[0]\n";
    # and fall thru   
  } elsif(ref( $_[0] ) eq 'SCALAR') {
    $self->{'source_scalar_ref'} = $_[0];
    DEBUG and print STDERR "$self 's source is scalar ref $_[0]\n";
    return;
  } elsif(ref( $_[0] ) eq 'ARRAY') {
    $self->{'source_arrayref'} = $_[0];
    DEBUG and print STDERR "$self 's source is array ref $_[0]\n";
    return;
  } elsif(ref $_[0]) {
    $self->{'source_filename'} = '' . ($handle = $_[0]);
    DEBUG and print STDERR "$self 's source is fh-obj $_[0]\n";
  } elsif(!length $_[0]) {
    Carp::croak("Can't use empty-string as a source for set_source");
  } else {  # It's a filename!
    DEBUG and print STDERR "$self 's source is filename $_[0]\n";
    {
      local *PODSOURCE;
      open(PODSOURCE, "<$_[0]") || Carp::croak "Can't open $_[0]: $!";
      $handle = *PODSOURCE{IO};
    }
    $self->{'source_filename'} = $_[0];
    DEBUG and print STDERR "  Its name is $_[0].\n";

    # TODO: file-discipline things here!
  }

  $self->{'source_fh'} = $handle;
  DEBUG and print STDERR "  Its handle is $handle\n";
  return 1;
}

# ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

sub get_title_short {  shift->get_short_title(@_)  } # alias

sub get_short_title {
  my $title = shift->get_title(@_);
  $title = $1 if $title =~ m/^(\S{1,60})\s+--?\s+./s;
    # turn "Foo::Bar -- bars for your foo" into "Foo::Bar"
  return $title;
}

sub get_title       { shift->_get_titled_section(
  'NAME', max_token => 50, desperate => 1, @_)
}
sub get_version     { shift->_get_titled_section(
   'VERSION',
    max_token => 400,
    accept_verbatim => 1,
    max_content_length => 3_000,
   @_,
  );
}
sub get_description { shift->_get_titled_section(
   'DESCRIPTION',
    max_token => 400,
    max_content_length => 3_000,
   @_,
) }

sub get_authors     { shift->get_author(@_) }  # a harmless alias

sub get_author      {
  my $this = shift;
  # Max_token is so high because these are
  #  typically at the end of the document:
  $this->_get_titled_section('AUTHOR' , max_token => 10_000, @_) ||
  $this->_get_titled_section('AUTHORS', max_token => 10_000, @_);
}

#--------------------------------------------------------------------------

sub _get_titled_section {
  # Based on a get_title originally contributed by Graham Barr
  my($self, $titlename, %options) = (@_);
  
  my $max_token            = delete $options{'max_token'};
  my $desperate_for_title  = delete $options{'desperate'};
  my $accept_verbatim      = delete $options{'accept_verbatim'};
  my $max_content_length   = delete $options{'max_content_length'};
  my $nocase               = delete $options{'nocase'};
  $max_content_length = 120 unless defined $max_content_length;

  Carp::croak( "Unknown " . ((1 == keys %options) ? "option: " : "options: ")
    . join " ", map "[$_]", sort keys %options
  )
   if keys %options;

  my %content_containers;
  $content_containers{'Para'} = 1;
  if($accept_verbatim) {
    $content_containers{'Verbatim'} = 1;
    $content_containers{'VerbatimFormatted'} = 1;
  }

  my $token_count = 0;
  my $title;
  my @to_unget;
  my $state = 0;
  my $depth = 0;

  Carp::croak "What kind of titlename is \"$titlename\"?!" unless
   defined $titlename and $titlename =~ m/^[A-Z ]{1,60}$/s; #sanity
  my $titlename_re = quotemeta($titlename);

  my $head1_text_content;
  my $para_text_content;
  my $skipX;

  while(
    ++$token_count <= ($max_token || 1_000_000)
    and defined(my $token = $self->get_token)
  ) {
    push @to_unget, $token;

    if ($state == 0) { # seeking =head1
      if( $token->is_start and $token->tagname eq 'head1' ) {
        DEBUG and print STDERR "  Found head1.  Seeking content...\n";
        ++$state;
        $head1_text_content = '';
      }
    }

    elsif($state == 1) { # accumulating text until end of head1
      if( $token->is_text ) {
          unless ($skipX) {
            DEBUG and print STDERR "   Adding \"", $token->text, "\" to head1-content.\n";
            $head1_text_content .= $token->text;
          }
      } elsif( $token->is_tagname('X') ) {
          # We're going to want to ignore X<> stuff.
          $skipX = $token->is_start;
          DEBUG and print STDERR +($skipX ? 'Start' : 'End'), 'ing ignoring of X<> tag';
      } elsif( $token->is_end and $token->tagname eq 'head1' ) {
        DEBUG and print STDERR "  Found end of head1.  Considering content...\n";
        $head1_text_content = uc $head1_text_content if $nocase;
        if($head1_text_content eq $titlename
          or $head1_text_content =~ m/\($titlename_re\)/s
          # We accept "=head1 Nomen Modularis (NAME)" for sake of i18n
        ) {
          DEBUG and print STDERR "  Yup, it was $titlename.  Seeking next para-content...\n";
          ++$state;
        } elsif(
          $desperate_for_title
           # if we're so desperate we'll take the first
           #  =head1's content as a title
          and $head1_text_content =~ m/\S/
          and $head1_text_content !~ m/^[ A-Z]+$/s
          and $head1_text_content !~
            m/\((?:
             NAME | TITLE | VERSION | AUTHORS? | DESCRIPTION | SYNOPSIS
             | COPYRIGHT | LICENSE | NOTES? | FUNCTIONS? | METHODS?
             | CAVEATS? | BUGS? | SEE\ ALSO | SWITCHES | ENVIRONMENT
            )\)/sx
            # avoid accepting things like =head1 Thingy Thongy (DESCRIPTION)
          and ($max_content_length
            ? (length($head1_text_content) <= $max_content_length) # sanity
            : 1)
        ) {
          # Looks good; trim it
          ($title = $head1_text_content) =~ s/\s+$//;
          DEBUG and print STDERR "  It looks titular: \"$title\".\n\n  Using that.\n";
          last;
        } else {
          --$state;
          DEBUG and print STDERR "  Didn't look titular ($head1_text_content).\n",
            "\n  Dropping back to seeking-head1-content mode...\n";
        }
      }
    }
    
    elsif($state == 2) {
      # seeking start of para (which must immediately follow)
      if($token->is_start and $content_containers{ $token->tagname }) {
        DEBUG and print STDERR "  Found start of Para.  Accumulating content...\n";
        $para_text_content = '';
        ++$state;
      } else {
        DEBUG and print
         "  Didn't see an immediately subsequent start-Para.  Reseeking H1\n";
        $state = 0;
      }
    }
    
    elsif($state == 3) {
      # accumulating text until end of Para
      if( $token->is_text ) {
        DEBUG and print STDERR "   Adding \"", $token->text, "\" to para-content.\n";
        $para_text_content .= $token->text;
        # and keep looking
        
      } elsif( $token->is_end and $content_containers{ $token->tagname } ) {
        DEBUG and print STDERR "  Found end of Para.  Considering content: ",
          $para_text_content, "\n";

        if( $para_text_content =~ m/\S/
          and ($max_content_length
           ? (length($para_text_content) <= $max_content_length)
           : 1)
        ) {
          # Some minimal sanity constraints, I think.
          DEBUG and print STDERR "  It looks contentworthy, I guess.  Using it.\n";
          $title = $para_text_content;
          last;
        } else {
          DEBUG and print STDERR "  Doesn't look at all contentworthy!\n  Giving up.\n";
          undef $title;
          last;
        }
      }
    }
    
    else {
      die "IMPOSSIBLE STATE $state!\n";  # should never happen
    }
    
  }
  
  # Put it all back!
  $self->unget_token(@to_unget);
  
  if(DEBUG) {
    if(defined $title) { print STDERR "  Returning title <$title>\n" }
    else { print STDERR "Returning title <>\n" }
  }
  
  return '' unless defined $title;
  $title =~ s/^\s+//;
  return $title;
}

#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
#
#  Methods that actually do work at parse-time:

sub _handle_element_start {
  my $self = shift;   # leaving ($element_name, $attr_hash_r)
  DEBUG > 2 and print STDERR "++ $_[0] (", map("<$_> ", %{$_[1]}), ")\n";
  
  push @{ $self->{'token_buffer'} },
       $self->{'start_token_class'}->new(@_);
  return;
}

sub _handle_text {
  my $self = shift;   # leaving ($text)
  DEBUG > 2 and print STDERR "== $_[0]\n";
  push @{ $self->{'token_buffer'} },
       $self->{'text_token_class'}->new(@_);
  return;
}

sub _handle_element_end {
  my $self = shift;   # leaving ($element_name);
  DEBUG > 2 and print STDERR "-- $_[0]\n";
  push @{ $self->{'token_buffer'} }, 
       $self->{'end_token_class'}->new(@_);
  return;
}

#@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

1;


__END__

=head1 NAME

Pod::Simple::PullParser -- a pull-parser interface to parsing Pod

=head1 SYNOPSIS

 my $parser = SomePodProcessor->new;
 $parser->set_source( "whatever.pod" );
 $parser->run;

Or:

 my $parser = SomePodProcessor->new;
 $parser->set_source( $some_filehandle_object );
 $parser->run;

Or:

 my $parser = SomePodProcessor->new;
 $parser->set_source( \$document_source );
 $parser->run;

Or:

 my $parser = SomePodProcessor->new;
 $parser->set_source( \@document_lines );
 $parser->run;

And elsewhere:

 require 5;
 package SomePodProcessor;
 use strict;
 use base qw(Pod::Simple::PullParser);

 sub run {
   my $self = shift;
  Token:
   while(my $token = $self->get_token) {
     ...process each token...
   }
 }

=head1 DESCRIPTION

This class is for using Pod::Simple to build a Pod processor -- but
one that uses an interface based on a stream of token objects,
instead of based on events.

This is a subclass of L<Pod::Simple> and inherits all its methods.

A subclass of Pod::Simple::PullParser should define a C<run> method
that calls C<< $token = $parser->get_token >> to pull tokens.

See the source for Pod::Simple::RTF for an example of a formatter
that uses Pod::Simple::PullParser.

=head1 METHODS

=over

=item my $token = $parser->get_token

This returns the next token object (which will be of a subclass of
L<Pod::Simple::PullParserToken>), or undef if the parser-stream has hit
the end of the document.

=item $parser->unget_token( $token )

=item $parser->unget_token( $token1, $token2, ... )

This restores the token object(s) to the front of the parser stream.

=back

The source has to be set before you can parse anything.  The lowest-level
way is to call C<set_source>:

=over

=item $parser->set_source( $filename )

=item $parser->set_source( $filehandle_object )

=item $parser->set_source( \$document_source )

=item $parser->set_source( \@document_lines )

=back

Or you can call these methods, which Pod::Simple::PullParser has defined
to work just like Pod::Simple's same-named methods:

=over

=item $parser->parse_file(...)

=item $parser->parse_string_document(...)

=item $parser->filter(...)

=item $parser->parse_from_file(...)

=back

For those to work, the Pod-processing subclass of
Pod::Simple::PullParser has to have defined a $parser->run method --
so it is advised that all Pod::Simple::PullParser subclasses do so.
See the Synopsis above, or the source for Pod::Simple::RTF.

Authors of formatter subclasses might find these methods useful to
call on a parser object that you haven't started pulling tokens
from yet:

=over

=item my $title_string = $parser->get_title

This tries to get the title string out of $parser, by getting some tokens,
and scanning them for the title, and then ungetting them so that you can
process the token-stream from the beginning.

For example, suppose you have a document that starts out:

  =head1 NAME

  Hoo::Boy::Wowza -- Stuff B<wow> yeah!

$parser->get_title on that document will return "Hoo::Boy::Wowza --
Stuff wow yeah!". If the document starts with:

  =head1 Name

  Hoo::Boy::W00t -- Stuff B<w00t> yeah!

Then you'll need to pass the C<nocase> option in order to recognize "Name":

  $parser->get_title(nocase => 1);

In cases where get_title can't find the title, it will return empty-string
("").

=item my $title_string = $parser->get_short_title

This is just like get_title, except that it returns just the modulename, if
the title seems to be of the form "SomeModuleName -- description".

For example, suppose you have a document that starts out:

  =head1 NAME

  Hoo::Boy::Wowza -- Stuff B<wow> yeah!

then $parser->get_short_title on that document will return
"Hoo::Boy::Wowza".

But if the document starts out:

  =head1 NAME

  Hooboy, stuff B<wow> yeah!

then $parser->get_short_title on that document will return "Hooboy,
stuff wow yeah!". If the document starts with:

  =head1 Name

  Hoo::Boy::W00t -- Stuff B<w00t> yeah!

Then you'll need to pass the C<nocase> option in order to recognize "Name":

  $parser->get_short_title(nocase => 1);

If the title can't be found, then get_short_title returns empty-string
("").

=item $author_name   = $parser->get_author

This works like get_title except that it returns the contents of the
"=head1 AUTHOR\n\nParagraph...\n" section, assuming that that section
isn't terribly long. To recognize a "=head1 Author\n\nParagraph\n"
section, pass the C<nocase> option:

  $parser->get_author(nocase => 1);

(This method tolerates "AUTHORS" instead of "AUTHOR" too.)

=item $description_name = $parser->get_description

This works like get_title except that it returns the contents of the
"=head1 DESCRIPTION\n\nParagraph...\n" section, assuming that that section
isn't terribly long. To recognize a "=head1 Description\n\nParagraph\n"
section, pass the C<nocase> option:

  $parser->get_description(nocase => 1);

=item $version_block = $parser->get_version

This works like get_title except that it returns the contents of
the "=head1 VERSION\n\n[BIG BLOCK]\n" block.  Note that this does NOT
return the module's C<$VERSION>!! To recognize a
"=head1 Version\n\n[BIG BLOCK]\n" section, pass the C<nocase> option:

  $parser->get_version(nocase => 1);

=back

=head1 NOTE

You don't actually I<have> to define a C<run> method.  If you're
writing a Pod-formatter class, you should define a C<run> just so
that users can call C<parse_file> etc, but you don't I<have> to.

And if you're not writing a formatter class, but are instead just
writing a program that does something simple with a Pod::PullParser
object (and not an object of a subclass), then there's no reason to
bother subclassing to add a C<run> method.

=head1 SEE ALSO

L<Pod::Simple>

L<Pod::Simple::PullParserToken> -- and its subclasses
L<Pod::Simple::PullParserStartToken>,
L<Pod::Simple::PullParserTextToken>, and
L<Pod::Simple::PullParserEndToken>.

L<HTML::TokeParser>, which inspired this.

=head1 SUPPORT

Questions or discussion about POD and Pod::Simple should be sent to the
[email protected] mail list. Send an empty email to
[email protected] to subscribe.

This module is managed in an open GitHub repository,
L<https://github.com/perl-pod/pod-simple/>. Feel free to fork and contribute, or
to clone L<git://github.com/perl-pod/pod-simple.git> and send patches!

Patches against Pod::Simple are welcome. Please send bug reports to
<[email protected]>.

=head1 COPYRIGHT AND DISCLAIMERS

Copyright (c) 2002 Sean M. Burke.

This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.

This program is distributed in the hope that it will be useful, but
without any warranty; without even the implied warranty of
merchantability or fitness for a particular purpose.

=head1 AUTHOR

Pod::Simple was created by Sean M. Burke <[email protected]>.
But don't bother him, he's retired.

Pod::Simple is maintained by:

=over

=item * Allison Randal C<[email protected]>

=item * Hans Dieter Pearcey C<[email protected]>

=item * David E. Wheeler C<[email protected]>

=back

=cut

JUNK:

sub _old_get_title {  # some witchery in here
  my $self = $_[0];
  my $title;
  my @to_unget;

  while(1) {
    push @to_unget, $self->get_token;
    unless(defined $to_unget[-1]) { # whoops, short doc!
      pop @to_unget;
      last;
    }

    DEBUG and print STDERR "-Got token ", $to_unget[-1]->dump, "\n";

    (DEBUG and print STDERR "Too much in the buffer.\n"),
     last if @to_unget > 25; # sanity
    
    my $pattern = '';
    if( #$to_unget[-1]->type eq 'end'
        #and $to_unget[-1]->tagname eq 'Para'
        #and
        ($pattern = join('',
         map {;
            ($_->type eq 'start') ? ("<" . $_->tagname .">")
          : ($_->type eq 'end'  ) ? ("</". $_->tagname .">")
          : ($_->type eq 'text' ) ? ($_->text =~ m<^([A-Z]+)$>s ? $1 : 'X')
          : "BLORP"
         } @to_unget
       )) =~ m{<head1>NAME</head1><Para>(X|</?[BCIFLS]>)+</Para>$}s
    ) {
      # Whee, it fits the pattern
      DEBUG and print STDERR "Seems to match =head1 NAME pattern.\n";
      $title = '';
      foreach my $t (reverse @to_unget) {
        last if $t->type eq 'start' and $t->tagname eq 'Para';
        $title = $t->text . $title if $t->type eq 'text';
      }
      undef $title if $title =~ m<^\s*$>; # make sure it's contentful!
      last;

    } elsif ($pattern =~ m{<head(\d)>(.+)</head\d>$}
      and !( $1 eq '1' and $2 eq 'NAME' )
    ) {
      # Well, it fits a fallback pattern
      DEBUG and print STDERR "Seems to match NAMEless pattern.\n";
      $title = '';
      foreach my $t (reverse @to_unget) {
        last if $t->type eq 'start' and $t->tagname =~ m/^head\d$/s;
        $title = $t->text . $title if $t->type eq 'text';
      }
      undef $title if $title =~ m<^\s*$>; # make sure it's contentful!
      last;
      
    } else {
      DEBUG and $pattern and print STDERR "Leading pattern: $pattern\n";
    }
  }
  
  # Put it all back:
  $self->unget_token(@to_unget);
  
  if(DEBUG) {
    if(defined $title) { print STDERR "  Returning title <$title>\n" }
    else { print STDERR "Returning title <>\n" }
  }
  
  return '' unless defined $title;
  return $title;
}

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